When I want to copy and paste the blog's website onto our Museum's Facebook page: http://facebook.com/MuseumofTexasTechUniversity it uses the blog's icon/logo as the thumbnail rather than selecting a random image from the blog to use as the thumbnail. Every other time I've put the link to the blog (museumttublog.com) on Facebook, it has given me the choice of, for example, choosing images 1 of 76 for the thumbnail.
Is this just a matter of checking or un-checking a box?
Help!
The blog I need help with is museumttublog.com.